Stump-puller



(No Model.)

S.. W. BAKER.

STUMP FULLER.

Patented July 22, 1890.

Homme/1j o 'similar View, the dogs being raised as for the UNrrnD Sterns STERLING W. BAKER, OF

OLALLO, VASHINGTON.

STUIVlP-PULLEIFL SPECIFICATION forming part of Letters Patent No. 432,851, dated uly 22, 189)a Application filed March 19, 1890. Serial Nm3/14,520. (No model.)

T0 all wiz/0m t may concern:

Be it known that. I, STERLING W. BAKER, a citizen of the United States, residing at Olallo, in the county of Kitsap and State of lVashington, have invented a new and useful Stump-Puller, of which the following is a specification.

This invention has relation to stu mp-pullers; and among the objects in view are to provide a construction adapted for pulling stumps from the ground and so constructed as to economize and exert great power.

Other objects and advantages of the invention, together with the novel features thereof, will hereinafter appear, and be particularly pointed out in the claims.

Referring' to the drawings, Figure 1 is a perspective of a stump-puller constructed in accordance with my invention. Figf2 is a longitudinal horizontal section. Fig. 3 is a withdrawal of the feed-rack. Fig. 4 is a detail in perspective of one ot' the latch-dogs. Fig. 5 is a similar view of the operatingalever. Fig. 6 is a detail in perspective of the slotted wedge.

Like numerals of reference indicate like parts in all the `figures of the drawings.

The beam l is provided with a longitudinal slot 2, which extends from near one end to the other, and the rear end of the same is provided with an opening 3, communicating wit-h the slot. The opposite end of the beam has a transverse perforation 4, through which an anchoring-chain may be passed for securing the beam in position.

Mounted for sliding in the slot 2 of the beam is a feed-bar 5, the opposite faces of which are provided with rearwardly-disposed teeth 6, those at one side occurring intermediate those at the opposite side. The rear end of the feed-rack 5 has a transverse perfoi-ation 7, for the reception of a cha-in oreable adapted to be suitably secured to the stump .to be extracted.A Near the rear end of the beam 1 the slot 2 is slightly widened, as at 8, and mounted therein and adapted for oscillation is a yoke 9, having a rectangular opening 10, adapted to receive the feed-bar 5. The opposite ends of the yoke terminate in sockets 11, each of which is adapted to receive an operating lever or handle 12, adapted to be grasped by the hand of the operators or moved by any suitable mechanism or power. The rectangular opening 1.0 in the yoke is considerably longer than the Widthof the feed-bar 5, and intermediate each side of said bar and the ends of the opening there is mounted a latch or dog 13. The latches or dogs 13 are near their rear ends transversely recessed, as at 1l, and in these recesses rests the yoke, said recesses forming a bearing for the yoke. In rear of the recesses the latches or dogs have their under edges charnferedor cut away, as at l5,so that by pressing upon said rear ends the front ends of the latches or dogs are elevated or withdrawn 'from contact with the feed-bar. Each of the latches have their front under surfaces provided with a pair of teeth 16, conforming in shape to the teeth 5 of the feed-bar.

Located in front of theoperatingyoke and extending transverse the slot 2 at opposite sides are stop-bars 16, against which the front ends of the latches or dogs are adapted to abut after they have moved said feed-bar a distance of one notch or tooth. Slightly in front of the transverse bar there are provided at opposite sides of the beam opposite bearings 17 at each side of the slot 2, and ou said bearings there are mounted opposite crank-shafts 1S, the cranked ends 19 of which overlap one of the faces of the beam 1 and are slightly curved. A bolt or pin 2O is located upon the beam 1 at a point intermediate the two cranks 19, and upon the sanne there is mounted a wedge-shaped block 21, provided with a longitudinal slot 22 for the reception of the pin, and by reason of the slot being adapted to be forced between the curved cranks 19, and thereby depress the two shafts or partially rotate the same in a common direction. Intermediate its bearings each of the shafts has rigidly secured thereto by rivets or otherwise a flat spring 23, rearwardly disposed and having its free end resting upon the front end of one of the latches.

The operation of my invention is as follows: The device having been secured, as before indicated, the rear ends of the latches are depressed and the slotted wedge retracted. The rear end of the feed-bar may now be drawn to the rear and all slack cable taken up by wind- IOO ing around the stump. The slotted wedge is now forced to the front, so as to lock the springs upon the dogs and insure their mesh with the teeth of the feed-bar. This having been accomplished, it is simply necessary to push each lever alternately to the rear, so that the same may engage a notch or tooth of the feedbar and then force the same to the front. It

,will be noticed that by reason of the relative location of the notches or teeth of the bar buta short movement of the yoke is necessary before the dogs engage a succeeding not-ch. In this manner the feed-bar is positively fed for- -Ward in the slot 2 of the beam and the strain directed to the cable, which results in the tearing up of the stump.

Having thus described my invention, what mounted at each side thereof, opposite dogs loosely connected with and adapted to be operated by the levers, an oppositely-toothcd feed-bar mounted in the beam and having its teeth engaged by the dogs, springs secured at the sides of the beam and bearing upon the dogs to maintain their engagement with the teeth of the bar, and devices for raising the springs, substantially as specified.

' 3. The combination, with a slotted beam and a rack-bar having its opposite surfaces provided With teeth, of a yoke embracing the rack-bar and terminating in opposite levers, opposite dogs adapted to engage the teeth, and loosely connected with thc yoke, opposite shafts terminating in cranks and journaled at the opposite ends of the beam, and a slotted Wedge mounted upon a bolt and adapted to be projected between the cranks, and flat springs mounted on the shafts and having their free ends bearing upon the dogs, substantially as speciied.

4. In a stump-puller, the combination, with a slotted beam, a reciprocating feed -bar mounted therein, and a yoke having an oblong recess for the reception of the bar, and loosely mounted in the slot, of opposite dogs terminating at their front ends in teeth adapted to engage the feed-bar, and having transverse recesses for the reception of the opposite edges of the yoke and having their rear ends beveled or cut away, substantially as specified.

5. In a stump-puller, the beam l, slotted, as at 2, and having the opening 3 in its rear end,

in combination with the feed-bar 5, having alternately-occurring teeth G upon itsopposite faces, the yoke 9, terminating in the sockets ll and having the handles 12 and oblong openings 10, the opposite dogs or latches 13, recessed, as at 14, and having their rear ends chamfered, as at 15, and provided at their front ends with teeth for engaging'the feed-bar, the opposite crank-shafts 18, mounted in bearings 17' and terminating in cranks 19, curved at one side of the beam and having the springs 23, rearwardly disposed and resting upon the dogs, the bolt 20, intermediate the shafts, and the Wedge 21, slotted, as at 22, for thereception of the bolt and adapted to be projected between the curved crank portions 19 for depressing thev springs, substantially as specified.

In testimony that I claim the foregoing as my oWn I have hereto affixed my signature in p'resence of two Witnesses.

STERLING W. BAKER.

Witnesses: .f

H. R. HEDRICK, B. F. STRADER. 

